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Journal Article

On the Reliability of Quake‐Catcher Network Earthquake Detections

Battalgazi Yildirim, Elizabeth S. Cochran, Angela Chung, Carl M. Christensen, Jesse F. Lawrence
Published: 01 April 2015
Seismological Research Letters (2015) 86 (3): 856–869.
DOI: https://doi.org/10.1785/0220140218
... for other purposes such as to monitor building health in Kohler et al. (2013) . These types of low‐cost networks may also have other potential applications such as detecting landslides ( Azzam et al. , 2011 ) and locating explosions ( Taylor et al. , 2011 ). The Quake‐Catcher Network ( QCN...
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View PDF for article title, On the Reliability of <span class="search-highlight">Quake</span>‐<span class="search-highlight">Catcher</span> <span class="search-highlight">Network</span> Earthquake Detections
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Journal Article

The Red Atrapa Sismos (Quake‐Catcher Network in Mexico): Assessing Performance during Large and Damaging Earthquakes

Luis A. Dominguez, Battalgazi Yildirim, Allen L. Husker, Elizabeth Cochran, Carl Christensen, Victor M. Cruz‐Atienza, Jesse F. Lawrence
Published: 11 March 2015
Seismological Research Letters (2015) 86 (3): 848–855.
DOI: https://doi.org/10.1785/0220140171
...Luis A. Dominguez; Battalgazi Yildirim; Allen L. Husker; Elizabeth Cochran; Carl Christensen; Victor M. Cruz‐Atienza; Jesse F. Lawrence The Quake‐Catcher Network ( QCN ) is an expanding seismic array made possible by thousands of participants who volunteered time and resources from...
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View PDF for article title, The Red Atrapa Sismos (<span class="search-highlight">Quake</span>‐<span class="search-highlight">Catcher</span> <span class="search-highlight">Network</span> in Mexico): Assessing Performance during Large and Damaging Earthquakes
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Journal Article

The Quake-Catcher Network Rapid Aftershock Mobilization Program Following the 2010 M 8.8 Maule, Chile Earthquake

A. I. Chung, C. Neighbors, A. Belmonte, M. Miller, H. H. Sepulveda, C. Christensen, R. S. Jakka, E. S. Cochran, J. F. Lawrence
Published: 01 July 2011
Seismological Research Letters (2011) 82 (4): 526–532.
DOI: https://doi.org/10.1785/gssrl.82.4.526
... and provide higher resolution maps of ground accelerations across a region. Quake-Catcher Network (QCN) is a new type of seismic network that implements distributed/volunteer computing combined with micro-electro-mechanical systems (MEMS) accelerometers to record earthquakes ( Cochran, Lawrence...
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View PDF for article title, The <span class="search-highlight">Quake</span>-<span class="search-highlight">Catcher</span> <span class="search-highlight">Network</span> Rapid Aftershock Mobilization Program Following the 2010 M 8.8 Maule, Chile Earthquake
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Journal Article

The Quake-Catcher Network: Citizen Science Expanding Seismic Horizons

Elizabeth S. Cochran, Jesse F. Lawrence, Carl Christensen, Ravi S. Jakka
Published: 01 January 2009
Seismological Research Letters (2009) 80 (1): 26–30.
DOI: https://doi.org/10.1785/gssrl.80.1.26
...Elizabeth S. Cochran; Jesse F. Lawrence; Carl Christensen; Ravi S. Jakka © 2009 by the Seismological Society of America 2009 The Quake-Catcher Network (QCN) is a seismic network that implements distributed/volunteer computing with the potential to provide critical earthquake information...
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(a) Quake‐Catcher Network (QCN) and (b) P‐alert citizen seismic networks in Taiwan. Gray color represents mountainous area with elevation higher than 500 m.The color version of this figure is available only in the electronic edition.

(a) Quake‐Catcher Network (QCN) and (b)  P ‐alert citizen seismic networks ...

Published: 16 December 2015
Figure 1. (a) Quake‐Catcher Network (QCN) and (b)  P ‐alert citizen seismic networks in Taiwan. Gray color represents mountainous area with elevation higher than 500 m.The color version of this figure is available only in the electronic edition.
Image
Locations of the Christchurch Quake‐Catcher Network (QCN) stations (blue triangles) deployed in September 2010 following the M 7.2 Darfield earthquake and the aftershocks (red and green stars, from the GeoNet catalog) used for this study. The stations are concentrated within the urban center of Christchurch, limiting azimuthal coverage of the earthquake sequence.

Locations of the Christchurch Quake‐Catcher Network (QCN) stations (blue tr...

Published: 19 May 2015
Figure 1. Locations of the Christchurch Quake‐Catcher Network (QCN) stations (blue triangles) deployed in September 2010 following the M  7.2 Darfield earthquake and the aftershocks (red and green stars, from the GeoNet catalog) used for this study. The stations are concentrated within the urban
Image
(a) The triggers received from the Quake‐Catcher Network (QCN) sensors (blue triangles) are given around the world. (b) The QCN sensor distribution and the QCN true‐positive events (the locations are GNS catalog locations) around Christchurch and New Zealand following the Darfield earthquake (3 September 2010).

(a) The triggers received from the Quake‐Catcher Network ( QCN ) sensors (b...

Published: 01 April 2015
Figure 1. (a) The triggers received from the Quake‐Catcher Network ( QCN ) sensors (blue triangles) are given around the world. (b) The QCN sensor distribution and the QCN true‐positive events (the locations are GNS catalog locations) around Christchurch and New Zealand following the Darfield
Journal Article

Improved Rapid Magnitude Estimation for a Community‐Based, Low‐Cost MEMS Accelerometer Network

Angela I. Chung, Elizabeth S. Cochran, Anna E. Kaiser, Carl M. Christensen, Battalgazi Yildirim, Jesse F. Lawrence
Published: 19 May 2015
Bulletin of the Seismological Society of America (2015) 105 (3): 1314–1323.
DOI: https://doi.org/10.1785/0120140232
...Figure 1. Locations of the Christchurch Quake‐Catcher Network (QCN) stations (blue triangles) deployed in September 2010 following the M  7.2 Darfield earthquake and the aftershocks (red and green stars, from the GeoNet catalog) used for this study. The stations are concentrated within the urban...
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Journal Article

Rapid Earthquake Characterization Using MEMS Accelerometers and Volunteer Hosts Following the M 7.2 Darfield, New Zealand, Earthquake

Jesse F. Lawrence, Elizabeth S. Cochran, Angela Chung, Anna Kaiser, Carl M. Christensen, Richard Allen, Jack W. Baker, Bill Fry, Thomas Heaton, Deborah Kilb, Monica D. Kohler, Michela Taufer
Published: 07 January 2014
Bulletin of the Seismological Society of America (2014) 104 (1): 184–192.
DOI: https://doi.org/10.1785/0120120196
... al. , 2009 ), the Quake‐Catcher Network ( QCN ; Cochran, Lawrence, Christensen, and Chung, 2009 ; Cochran, Lawrence, Christensen, and Jakka, 2009 ), and the Community Seismic Network ( Clayton et al. , 2011 ). New sensor technology and computational techniques provide an avenue for creating very...
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Journal Article

Strong-Motion Observations of the M 7.8 Gorkha, Nepal, Earthquake Sequence and Development of the N-SHAKE Strong-Motion Network

Amod Mani Dixit, Adam T. Ringler, Danielle F. Sumy, Elizabeth S. Cochran, Susan E. Hough, Stacey S. Martin, Steven Gibbons, James H. Luetgert, John Galetzka, Surya Narayan Shrestha, Sudhir Rajaure, Daniel E. McNamara
Published: 14 October 2015
Seismological Research Letters (2015) 86 (6): 1533–1539.
DOI: https://doi.org/10.1785/0220150146
... 7.8 Gorkha, Nepal, earthquake sequence collected using existing and new Quake-Catcher Network (QCN) and U.S. Geological Survey NetQuakes sensors located in the Kathmandu Valley. A comparison of QCN data with waveforms recorded by a conventional strong-motion (NetQuakes) instrument validates the QCN...
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Includes: Supplemental Content
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The O‐NAVI model B accelerometer (see Data and Resources) used by the Quake‐Catcher Network (QCN, 2014).

The O‐NAVI model B accelerometer (see Data and Resources ) used by the Qua...

Published: 01 January 2016
Figure 1. The O‐NAVI model B accelerometer (see Data and Resources ) used by the Quake‐Catcher Network ( QCN, 2014 ).
Image
(a) North–south (HNN) recording of the M 6.7 aftershock (acceleration, velocity, and displacement) on the (left) NetQuakes sensor NQ.KATNP, and (right) by Quake-Catcher Network QCN instrument 31523. (b) Combined geometric mean of the horizontal acceleration spectra for M≥5 earthquakes as recorded on the QCN and NQ.KATNP stations, color coded as shown in the legend.

(a) North–south (HNN) recording of the M  6.7 aftershock (acceleration, ve...

Published: 14 October 2015
Figure 4. (a) North–south (HNN) recording of the M  6.7 aftershock (acceleration, velocity, and displacement) on the (left) NetQuakes sensor NQ.KATNP, and (right) by Quake-Catcher Network QCN instrument 31523. (b) Combined geometric mean of the horizontal acceleration spectra for M ≥5
Image
Mean PSD (McNamara and Buland 2004) of a representative MAMA node (MAMA Rev 0.3, blue line) and Quake Catcher Network's O-Navi B 16-bit MEMS sensor (O-Navi B, green line) installed at the Berkeley Byerly Vault. The conventional strong motion sensor (Episensor) of the BK network located at the Byerly Vault is marked as a red line (BKS station) for comparison of background noise levels. Lines are the mean PSD of the horizontal traces, between 1 September 2016 and 5 September 2016. Earthquake representative spectra responses are marked as dark solid and dashed gray lines for near and far fields, respectively (Clinton and Heaton 2002). New High Noise Model (Peterson 1993) is marked as a solid gray line. Earthquake data converted to dB following Cauzzi and Clinton (2013).

Mean PSD ( McNamara and Buland 2004 ) of a representative MAMA node (MAMA R...

Published: 01 February 2019
Figure 2. Mean PSD ( McNamara and Buland 2004 ) of a representative MAMA node (MAMA Rev 0.3, blue line) and Quake Catcher Network's O-Navi B 16-bit MEMS sensor (O-Navi B, green line) installed at the Berkeley Byerly Vault. The conventional strong motion sensor (Episensor) of the BK network
Journal Article

Using an Arduino Seismograph to Raise Awareness of Earthquake Hazard Through a Multidisciplinary Approach

Angela Saraò, Marco Clocchiatti, Carla Barnaba, David Zuliani
Published: 01 January 2016
Seismological Research Letters (2016) 87 (1): 186–192.
DOI: https://doi.org/10.1785/0220150091
...Figure 1. The O‐NAVI model B accelerometer (see Data and Resources ) used by the Quake‐Catcher Network ( QCN, 2014 ). ...
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Journal Article

The Game of Curiosity: Using Videogames to Cultivate Future Scientists

Debi Kilb, Daniel Rohrlick, Alan Yang, Yerrie Choo, Logan Ma, Roxanne Ruzic
Published: 01 July 2014
Seismological Research Letters (2014) 85 (4): 923–929.
DOI: https://doi.org/10.1785/0220130182
... the seismic sensor. Our game is based on the Quake Catcher Network citizen science project ( Cochran et al. , 2009 , 2011 ; Chung et al. , 2011 ; Lawrence et al. , 2014 ). In general, citizen science projects are projects that enlist the help of the general population to assimilate, examine...
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Utilizing an Arduino‐Based Accelerometer in Civil Engineering Applications in Undergraduate Education

Ahu Komec Mutlu, Ulgen Mert Tugsal, Ahmet Anil Dindar
Published: 17 November 2021
Seismological Research Letters (2022) 93 (2A): 1037–1045.
DOI: https://doi.org/10.1785/0220210137
... of damage assessment strategy. For example, the Quake‐Catcher Network (QCN) (2014 ; Cochran et al. , 2009 ) operating within the Euro‐Mediterranean Seismology Center (CSEM‐EMSC) and the Community Seismic Network (CSN) ( Clayton et al. , 2011 ) are notable SHM networks. In this project...
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Journal Article

Transitions

Published: 01 January 2014
Seismological Research Letters (2014) 85 (1): 5.
DOI: https://doi.org/10.1785/0220130205
... and Planetary Science was honored as an American Geophysical Union Fellow at the AGU 2013 meeting in San Francisco. Elizabeth Cochran , a USGS research geophysicist at USGS in Pasadena, was a finalist for the World Technology Awards in the Environment category for her work on the Quake Catcher...
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How Students Can Experience Science and Become Researchers: Tracking MERMAID Floats in the Oceans

F. Bigot‐Cormier, J.‐L. Berenguer
Published: 18 January 2017
Seismological Research Letters (2017) 88 (2A): 416–420.
DOI: https://doi.org/10.1785/0220160121
.... Tocheport A. Bouin M. P. ( 2013 ). Tuned in to the Earth from the school EduSismo: The French educational seismological network , Bull. Soc. Geol. Fr. 184 , 183–187 . Cochran E. S. Lawrence J. F. Christensen C. Jakka R. ( 2009 ). The Quake‐Catcher Network: Citizen...
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Learning Seismology through Inquiry: Structured, Guided, or Both?

Yi‐Chen Chiu, Chun‐Hui Jen, Chun‐Yen Chang, Po‐Lei Lee, Ting‐Kuang Yeh
Published: 11 May 2016
Seismological Research Letters (2016) 87 (4): 998–1007.
DOI: https://doi.org/10.1785/0220150206
..., therefore, tried to imitate an earthquake in a basketball gymnasium to enlarge the distance between the source (by jumping on the floor) of the earthquake and the Quake‐Catcher Network (QCN) sensors. However, there were no similar patterns of behaviors or self‐initiated experiments observed...
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Earthquake School in the Cloud: Citizen Seismologists in Taiwan

Wen‐Tzong Liang, Kate Huihsuan Chen, Yu‐Feng Wu, Eric Yen, Chun‐Yen Chang
Published: 16 December 2015
Seismological Research Letters (2016) 87 (1): 177–185.
DOI: https://doi.org/10.1785/0220150061
...Figure 1. (a) Quake‐Catcher Network (QCN) and (b)  P ‐alert citizen seismic networks in Taiwan. Gray color represents mountainous area with elevation higher than 500 m.The color version of this figure is available only in the electronic edition. ...
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